Your Reason rack just got bigger. All new Reason
version 4 comes equipped with a brand new sequencer,
a revolutionary groove tool, a stunning arpeggiator
and a synth to end all synths. Welcome to Reason
version 4 - the bigger rack.

Thor

A multi-synthesis synthesizer with six oscillator
types, four different filters, a step sequencer and a
modulation matrix. Fully routable. Fully automatable.
Fully everything.

RPG-8

A monophonic arpeggiator with multiple play modes,
an insert funcsome.